A varied assortment of papers including additional pension statements, copies of early documents, Draper correspondence, and a few notes and clipped articles. Major topics discussed in the correspondence include the route taken over the Allegheny Mountains by patriot troops approaching King's Mountain, the topography of the battleground, movements of the men after the battle, and the engagements of Cane Creek and Ramsour's Mill (1780). There are also copies of British and American accounts of King's Mountain from contemporary newspapers and a transcript of a manuscript narrative about the event by historian George Bancroft. A few letters concerning treatment and escape of prisoners were copied from the Horatio Gates Papers in the New-York Historical Society.

Among Draper's most interesting sources was the diary of a Loyalist lieutenant under Patrick Ferguson, Anthony Allaire, who chronicled his experiences during the British campaign from March to November 1780, including the King's Mountain engagement, his capture and treatment, and his successful escape to Charleston. From Allaire's grandson, J. DeLancey Robinson, Draper obtained this copy of the diary and with Robinson's approval (12 DD 79) published it as an appendix in King's Mountain and Its Heroes.

Other correspondence contains genealogical or biographical information on numerous persons and families, both patriot and Loyalist: Charles Campbell; John Carson; David and Henry Gillespie; Samuel Handley; Christopher, James, and Samuel Houston; Thomas Lytle; Joseph McDowell of Quaker Meadows, Joseph McDowell of Pleasant Gardens, and their families; Arthur McFall; John and Patrick Moore; Nathan Reid (Read); David Robinson; David Vance; John Weir and the Weir family; William Wofford; and Samuel Wood. Added after Draper's lifetime were letters (1896-1897) by Flournoy Rivers commenting on King's Mountain and Its Heroes and discussing in particular Larkin Cleveland, William Gilbert, and James Holland and his Negro named “Aunt Vicey.”